Find the slope and the y-intercept of the given line.7x + 9y = 73
A. 
; 
B. - 
; 
C. 
; 
D. - 
; 
Answer: D
Mathematics
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Multiply and simplify.18 
A. 
B. -162
C. -2
D. 2
Mathematics
Graph the function. Give the domain and range.f(x) = log4(x + 4)
A. domain: (-?, ?); range: (0, ?)
B. domain: (-?, ?); range: (4, ?)
C. domain: (-4, ?); range: (-?, ?)
D. domain: (0, ?); range: (-?, ?)
Mathematics
Find the requested vector.v = -2i + 3j + k, u = 5i + 4j - 5kFind a vector orthogonal to both v and u.
A. -29i - 15j - 41k B. -19i - 5j - 23k C. 2i + 2j - 2k D. -2i - 2j + 2k
Mathematics
Solve the problem.In an electric circuit, the electromotive force is defined as V = cos 2?t, where t is time in seconds. Solve the equation for t.
A. t = 2? cos V
B. t = 
cos V
C. t = 2? arccos V
D. t = 
arccos V
Mathematics